Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"de thanh cui snippets" » "de thanh qui snippets", "de than cui snippets", "de thanh bui snippets", "le thanh cui snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("de thanh cui snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("de thanh cui snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( de thanh cui snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("de thanh cui snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.